You have to look at it holistically. In one system everything is thrown in the trash. In another system you separate out recyclables to be sold, and to reduce

You have to look at it holistically. In one system everything is thrown in the trash. In another system you separate out recyclables to be sold, and to reduce how much trash needs to be disposed of. Now you need multiple bins, you need to ensure that trash is not mixed into the recyclables, different trucks or more trucks, more staff. The cost of labor, the cost of disposing of trash, the capital costs to implement the system, and the income from recycling all effects whether it is sustainable.